/* ตัวแปรสี โทนม่วงพระเทพ */
:root {
    --royal-purple: #6A1B9A;      
    --royal-purple-dark: #4A148C; 
    --royal-purple-light: #F3E5F5;
    --royal-purple-hover: #8E24AA;
    --royal-gold: #FBC02D;        
}

body {
    font-family: 'Sarabun', sans-serif;
    font-size: 1.15rem; 
    background-color: var(--royal-purple-light); 
}

/* บังคับสีม่วงให้ครอบคลุม */
.bg-royal-purple { background-color: var(--royal-purple) !important; color: white !important; }
.text-royal-purple { color: var(--royal-purple) !important; }
.text-royal-gold { color: var(--royal-gold) !important; }
.border-royal { border-color: var(--royal-purple) !important; }

/* จัดการปุ่ม */
.btn-royal {
    background-color: var(--royal-purple);
    color: white;
    border: 1px solid var(--royal-purple-dark);
}
.btn-royal:hover {
    background-color: var(--royal-purple-dark);
    color: var(--royal-gold);
}

.btn-outline-royal {
    color: var(--royal-purple);
    border: 2px solid var(--royal-purple);
    background: white;
}
.btn-outline-royal:hover {
    background-color: var(--royal-purple);
    color: white;
}

/* จัดการตาราง */
.table-royal thead th {
    background-color: var(--royal-purple-dark) !important;
    color: white !important;
    border-bottom: 3px solid var(--royal-gold) !important;
    font-weight: 600;
}
.table-royal tbody tr:hover {
    background-color: #E1BEE7 !important; 
}

/* จัดการ Sidebar เมนูซ้ายมือ */
@media (min-width: 768px) {
    .sidebar { min-height: 100vh; }
}

.sidebar, .offcanvas-md { 
    background-color: var(--royal-purple) !important; 
    color: white !important; 
    border-right: 2px solid var(--royal-purple-dark); 
}

.sidebar a { 
    color: rgba(255, 255, 255, 0.85); 
    text-decoration: none; 
    padding: 12px 15px; 
    display: block; 
    border-radius: 5px; 
    margin-bottom: 5px; 
    transition: all 0.2s; 
    font-weight: 500;
}
.sidebar a:hover, .sidebar a.active { 
    color: #fff; 
    background-color: var(--royal-purple-dark); 
    border-left: 5px solid var(--royal-gold);
    padding-left: 20px; 
}

/* เอฟเฟกต์รูปภาพ */
.img-thumbnail-btn { cursor: pointer; transition: transform 0.2s; }
.img-thumbnail-btn:hover { transform: scale(1.15); box-shadow: 0 4px 8px rgba(106, 27, 154, 0.4); }

/* หัว Modal */
.modal-header-royal {
    background-color: var(--royal-purple);
    color: white;
    border-bottom: 3px solid var(--royal-gold);
}